Dichapetalum pedunculatum

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Dichapetalum pedunculatum

Content

<<<Petiole>Blade>Shape>Dimensions

5-16 x 2-7.5 cm1
1. 003-003-002-001

<<Flowers>Bracts and bracteoles>Hairs

tomentose2
2. 005-002-003

<<Flowers>Bracts and bracteoles>Length

0.5-2 mm long3
3. 005-002-002

<<Flowers>Bracts and bracteoles>Shape

lanceolate4
4. 005-002-001

<<Flowers>Calyx>Hairs

tomentose on exterior5
5. 005-003-002

<<Flowers>Calyx>Length

1.5-2 mm long6
6. 005-003-001

<<Flowers>Calyx>Lobes

lobes almost equal;7
7. 005-003-003

<<Flowers>Disk>Gland number

58
8. 005-006-001

<<Flowers>Fertile stamens>Stamen number

59
9. 005-005-001

<<Flowers>Pedicels>Length

0.2-1.5 mm long10
10. 005-001-001

<<Flowers>Petals>Colour

yellow or white11
11. 005-004-002

<<Flowers>Petals>Hairs

glabrous12
12. 005-004-003

<<Flowers>Petals>Lobe number

513
13. 005-004-001

<<Flowers>Style>Division

divided into 2 or 3, or united with a 3-fid apex14
14. 005-008-002

<<Flowers>Style>Hairs

lanate at base, glabrous at apex15
15. 005-008-001

<<Fruits>Endocarp>Hairs

glabrous within16
16. 006-005-001

<<Fruits>Epicarp>Hairs

short-tomentellous17
17. 006-003-001

<<Habit>Juvenile branches>Hairs

tomentellous to glabrous18
18. 001-001-001

<<Inflorescences>Peduncle>Length

1-3.5 cm long19
19. 004-004-001

<<Inflorescences>Rachises and branches>Hairs

tomentellous to glabrescent20
20. 004-003-001

<<Petiole>Blade>Hairs

glabrous or with a few stiff hairs on venation only beneath21
21. 003-003-004

<<Petiole>Blade>Shape

ovate-elliptic to oblong, , acuminate at apex, subcordate to subcuneate and slightly unequal at base22
22. 003-003-002

<<Petiole>Blade>Texture

coriaceous23 plane not bullate above24
23. 003-003-001, 24. 003-003-003

<<Petiole>Midrib>Hairs

pubescent to glabrous25
25. 003-004-001

<<Petiole>Midrib>Secondary vein pair number

7-9 pairs26
26. 003-004-002

<<Stipules>Margins>Margin type

entire27
27. 002-004-001

<Flowers>Bracts and bracteoles

bracts and bracteoles , , persistent, ;28
28. 005-002

<Flowers>Calyx

calyx , ,29
29. 005-003

<Flowers>Disk

disk of large glands with lobed apices;30
30. 005-006

<Flowers>Fertile stamens

fertile stamens , alternating and equalling or shorter than petal lobes;31
31. 005-005

<Flowers>Ovary

ovary lanate on exterior,32
32. 005-007

<Flowers>Pedicels

pedicel ;33
33. 005-001

<Flowers>Petals

petals of equal lobes, deeply bifid, , ;34
34. 005-004

<Flowers>Style

styles ,35
35. 005-008

<Fruits>Endocarp

endocarp thin, hard, bony, .36
36. 006-005

<Fruits>Epicarp

epicarp ,37
37. 006-003

<Fruits>Locule number

most frequently 1-locular, but often 2-locular38
38. 006-002

<Fruits>Mesocarps

mesocarp thin,39
39. 006-004

<Fruits>Shape

ellipsoid40
40. 006-001

<Habit>Juvenile branches

young branches .41
41. 001-001

<Inflorescences>Growth form

spreading42
42. 004-001

<Inflorescences>Peduncle

peduncle .43
43. 004-004

<Inflorescences>Position

sometimes terminal44
44. 004-002

<Inflorescences>Rachises and branches

rachis and branches ;45
45. 004-003

<Petiole>Blade

blade , , , ;46
46. 003-003

<Petiole>Hairs

shortly tomentellous at least when young47
47. 003-002

<Petiole>Length

4-12 mm long48
48. 003-001

<Petiole>Midrib

midrib more or less plane above, , of secondary veins, more or less plane above, venation plane above.49
49. 003-004

<Stipules>Hairs

puberulous to tomentellous50
50. 002-003

<Stipules>Length

to 10 mm long51
51. 002-002

<Stipules>Margins

margin .52
52. 002-004

<Stipules>Shape

linear53
53. 002-001

Common Name

English (Guyana): kahakudiballi rope, massari

Description

Liana; young branches tomentellous to glabrous. Stipules persistent, linear, to 10 mm long, puberulous to tomentellous, margin entire. Petiole 4-12 mm long, shortly tomentellous at least when young; blade coriaceous, ovate-elliptic to oblong, 5-16 x 2-7.5 cm, acuminate at apex, subcordate to subcuneate and slightly unequal at base, plane not bullate above, glabrous or with a few stiff hairs on venation only beneath; midrib more or less plane above, pubescent to glabrous, 7-9 pairs of secondary veins, more or less plane above, venation plane above. Inflorescence a spreading panicle, usually petiolar, sometimes terminal; rachis and branches tomentellous to glabrescent; peduncle 1-3.5 cm long. Flowers hermaphrodite; pedicel 0.2-1.5 mm long; bracts and bracteoles lanceolate, 0.5-2 mm long, persistent, tomentose; calyx 1.5-2 mm long, tomentose on exterior, lobes almost equal; petals of 5 equal lobes, deeply bifid, yellow or white, glabrous; fertile stamens 5, alternating and equalling or shorter than petal lobes; disk of 5 large glands with lobed apices; ovary lanate on exterior, styles lanate at base, glabrous at apex, divided into 2 or 3, or united with a 3-fid apexFruit ellipsoid, most frequently 1-locular, but often 2-locular, epicarp short-tomentellous, mesocarp thin, endocarp thin, hard, bony, glabrous within.

Distribution

Guianas present, Trinidad present, northern Venezuela present, western part of Brazilian Amazonia present
From Trinidad and northern Venezuela through the Guianas to the western part of Brazilian Amazonia; many collections studied (GU: 43; SU: 14; FG: 23).

Flowers

Flowers hermaphrodite;54
54. 005

Fruits

Fruit , ,55
55. 006

Habit

Liana;56
56. 001

Individuals Association

Guyana, Potaro-Siparuni Region, vicinity of Paramakatoi, Hahn 5661 Suriname, Brownsberg, BW 3219 Cabassou, 7 Km SW of Cayenne, Hladik 3095 Chemin de Vidal, Rémire, Leeuwenberg 11638 Guyana, Berbice-Corentyne Region, Corentyne R. above Cow Falls, near Baba Grant Sawmill, McDowell 2338 Suriname, Kalebo Dam near Nickerie, Lindeman & Görts et al. 375

Inflorescences

Inflorescence a panicle, usually petiolar, ;57
57. 004

Notes

De Candolle, in his original description of Chailletia pedunculata, did not give any details about this type specimen except to say that it was from Cayenne. Baillon in 'Flora Brasiliensis' cited one of the Paris sheets as the type: Herb. Olyssip s.n., from Pará, Brazil. This sheet came from the herbarium Lusitania in Lisboa, and was presumably collected by A.R. Ferreira in Brazil between 1783 and 1792. It could have been at Paris prior to De Candolle's description of C. pedunculata, and was possibly seen by him. However, it disagrees with de Candolle's description in two features, firstly in the locality, Brazil not Cayenne, and secondly in the mature flowers. De Candolle was unable to describe mature flowers of C. pedunculata, yet the Herb. Olyssip material has many open flowers. Baillon was certainly incorrect in his designation of the type collection of D. pedunculatum. De Candolle in the 'Prodromus' gave a synoptic description of D. pedunculatum which included the citation of a single collection by Patris. Thus the type is certainly the Patris collection. The De Candolle herbarium at Geneva has three sheets of D. pedunculatum all without field notes or collectors' names. One of these sheets is, however, marked Cayenne. This is almost certainly the type collection, and at least one of the three sheets in the De Candolle herbarium, possibly all three, is the Patris collection.

Petiole

Petiole , ;58
58. 003

Phenology

Flowering .

Stipules

Stipules persistent, , , ,59
59. 002